Gas-governor



(No Model.) 7

P. 'ELLIS. GAS GOVERNOR.

No. 416,216. Patented Dec. 3, 1889'.

UNITED STATES PATENT OFFICE.

FRANKLIN ELLIS, OF SAN FRANCISCO, CALIFORNIA.

GAS-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 416,216, dated December 3, 1889.

Application filed July 5, 1889. Serial No. 316,584. (No model. 7

T0 aZZ whom it may concern.-

Be it known that I, FRANKLIN ELLIS, a citizen of the United States, and a resident of the city and county of San Francisco, State of California, have invented new and useful Improvements in Gas-Governors, of which the following is a specification.

My, invention consists in a small apparatus of novel pattern and construction into which the gas enters and from which it is supplied to the feed-pipeswith regulated pressure.

The object of the governor is to so equalize the flow of gas that a steady and brilliant light will be obtained regardless of the number of burners used, and at the same time all waste from excess of pressure prevented.

A further object of my invent-ion is to produce a regulator of greater simplicity than those already in use-that is to say, composed of fewer parts, lighter of weight, and easier to cleanse.

The nature of my improvements is fully set forth in the following description, reference being had to the accompanying drawings, in which Figure 1 is an elevation of the whole device, and Fig. 2 a vertical central section of the same, showing the arrangement of the inside parts.

Similar letters of reference are used to designate like parts in both views.

The body of the governor A, including the central diaphragm B, the inlet C without the usual valve-seat, and the exit D, are cast of one piece. I make the lower portion of the outer shell or casing globular and the top part cylindrical, so as to give it a nicer appearance.

The diaphragm B is centrally raised in the shape of a dome, in order to form an annular trough E, into which is poured some mercury or other liquid. A bellshaped float F caps the raised portion of the diaphragm 13, its lower edge dipping into the quicksilver and forming a seal at this point. The float F is made of Russian irona metal which has the property of resisting the action of the mercury-and is composed of two parts, the top a and rim I; being made separately and afterward united by a gas-tight double seam c.

The interiorof the inlet C is screw-threaded and engaged by a correspondingly-threaded tor-valve. The thickness of this bushing may be varied according to circumstances, so as to present at the valve-seat openings of different sizes for the infiowing gas. This last feature I consider a great improvement, insomuch that this arrangement permits the use of the same governor, whether a great or a small number ofburners are used.

The bushing G has a flange d, adapted to bear against the lower end of the inlet, and internal ribs 6 a, through which it may be forced home without injury by means of a socket-wrench.

To the float F is secured a vertically-movable stem H, which is passed through a hole in the center of the diaphragm B and reaches down below the head of the bushingjust described. The regulating-valvel is attached to the lower end of the stem H, and has its seat upon the bushing G, as already mentioned. This valve is a segment of a hollow sphere and is rotatable upon its stem, with which it has a screw-thread connection.

Both the inlet C and outlet D are tubular and provided on the outside with male standard gas-pipe threads, as shown, allowing them to be readily united to the pipes by means of T-fittings J. This construction is the handiest yet devised for the purpose. The Ts besides afford convenient drips for any condensation of the gas that may take place. A similar receptacle is furnished around the protruding end of the bushing G within the casing. Owing to this arrangement any sediment resulting from the condensation of gas or other causes can be dropped out in a moment and without trouble by simply removing the plugs K at the bottom end of the Ts, and occasionally the valve and bushing. In this structure all the inside parts can be taken out and ren ovated without dismantling the governor.

The whole apparatus is topped by a plain cap shaped cover L, which is secured in place by a set-screw M, thus dispensing with screwthreads or complicated looks.

The operation of my governor need not be described, as it can be understood at "a glance by any mechanic. However, it maybe readily seen that the governor being gaged for the passage of a certain volume of gas, it the bushing G, intended as a seat for the regula gas be let in too freely its pressure beneath the bell-shaped float will cause it and the valve to rise, and thus reduce the size of the aperture at the inlet. On the other hand, a decrease of pressure will have a contrary effeet in increasing the opening. The flow of gas will thus be equalized, notwithstanding varying pressure in the mains or the variations brought about by turning on or shutting off gas to and from burners in the buildings.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent,is

In a gas-governor, the combination of a casing globular at its lower end and cylindrical in the upper portion, a centrally-raised diaphragm forming an annular trough in the upper end of said casing, a sealing-liquid within said trough, a bell-shaped float made of two parts united by a gas-tight double seam dipping into said liquid, a verticallymovable stein depending from said float, a segment-valve rotatable upon said stein, a tubular inwardly-threaded gas-inlet, a correspondingly-threaded bushing engaged therewith forming an adjustable seat for said valve, and internal ribs orlugs through which said bushing may be adjusted, substantially as described.

In witness whereof I have hereunto set my hand and affixed my seal.

FRANKLIN ELLIS. [Ls] \Vitnesses:

J. F. KINGWELL, ALBERT McALEsTER. 

